package servlet;

import pojo.User;
import service.UserService;
import service.impl.UserServiceImpl;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;


// 注解
@WebServlet(urlPatterns = "/toupdate")
public class ToUpdateUserServlet extends HttpServlet {

    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        doPost(req, resp);
    }

    @Override
    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        UserService userService = new UserServiceImpl();

        req.setCharacterEncoding("UTF-8");
        String sid = req.getParameter("id");
        int id = Integer.parseInt(sid);
        User user = userService.findUserById(id);

        // 存储对象到作用域中
        req.setAttribute("user", user);
        // 跳转到对应的视图显示数据
        req.getRequestDispatcher("/update.jsp").forward(req, resp);

    }
}
